TgJ Jer3:1 :וְתוּבִי מִכְעַן לְפֻלחָנִי‏ : so from now on return to My worship
See the entire entry for kˁn adv. now

TgJ Jer3:1 :הָא יִפטַר גְבַר יָת אִתְתֵיה‏ :
See the entire entry for pṭr vb. to separate